49

64

36

81

mk trả loi đầu tiên nh tk nha!!

7x7=49

8x8=64

6x6=36

9x9=81

7 x 7 = 49

8 x 8 = 64

6 x 6 = 36

9 x 9 = 81

1 + 2 x 2 + 3 x 3 + 4 x 4 + 5 x 5 + 6 x 6 + 7 x 7 + 8 x 8 + 9 x 9 + 10 x 10

= 1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81 + 100

= 385

1 + 2x2 + 3x3 + 4x4 + 5x5 + 6x6 + 7x7 + 8x8 + 9x9 + 10x10

= 1+4+9+16+25+36+49+64+81+100

=(81+9)+(64+16)+(49+1)+)36+4)+25+100

=90+80+50+40+25 +100

=385

Đặt T = 1 + 2 x 2 + ... + 10 x 2 = 385

7x7=49

8x8=64

9x9=81

k mình nha

7 x 7 = 49

8 x 8 = 64

9 x 9 = 81 nha bạn nhaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

7 x 7 = 49

8 x 8 = 64

9 x 9 = 81

1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x 5 = 25
6 x 6 = 36
7 x 7 = 49
8 x 8 = 64
9 x 9 = 81 
10 x 10 = 100
 

\(1x1=1\)

\(2x2=4\)

\(3x3=9\)

\(4x4=16\)

\(5x5=25\)

\(6x6=36\)

\(7x7=49\)

\(8x8=64\)

\(9x9=81\)

\(10x10=100\)

1 x 1 = 1

2 x 2 = 4

3 x 3 = 9

4 x 4 = 16

5 x 5 = 25

6 x 6 = 36

7 x 7 = 49

8 x 8 = 64

9 x 9 = 81

10 x 10 = 100

9x9=81

8x8=64

7x7=49

6x6=36

5x5=25

TK nha!

81,64,49 và 36 nha bn

9 x 9 = 81

8 x 8 = 64

7 x 7 = 49

6 x 6 = 36

5 x 5 = 25

~~~~~hok tốt ~~~~~~!!!!###$$$$>>>>33333

Kết quả bằng 91

=81+72-64+10-8

=91

= 81 + 72 - 64 + 10 -8 

= 153 - 64 + 10 - 8

= 89 + 10 - 8

= 99 - 8

= 91

1,4,9,16

ai đúng mình tích

1x1=1

2x2=4

3x3=9

4x4=16

5x5=25

6x6=36

7x7=49

8x8=64

9x9=81

10x10=100

11x11=121

12x12=144

13x13=169

14x14=196

15x15=225

16x16=256

17x17=289

18x18=324

19x19=361

20x20=400

Trả lời:

64

81

45

HT

8x8=64

9x9=81

1+................+8+9=45

k mik nha

8x8=64

9x9=81

1+2+3+4+5+6+7+8+9=45

8*8=64

7*9=63

9*9=81

10*10=100

6*8=48 

k nha

8 x 8 = 64

7 x 9 = 63

9 x 9 = 81

10 x 10 = 100

6 x 8 = 48

8x8=64

7x9=63

9×9=81

10×10=100

6×8=48